Perhaps you should try some spelling variations:
longo john » kong john
hua irene » hua ren
wong john » wrong john, kong john, young john
wang gan » wang yan, wang ban, wang dan
gan guan » yan guan, quan guan, fan guon
guan hua » tuan hua, gui hua, tan hua
wong sam » wong sau, wong lai, von sam
sar » sara, star, saur

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang gan guan hua irene ((wong john) OR (longo john)) ((wong sam) OR (kong sar)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang gan guan hua irene ((wong john) or (longo john)) ((wong sam) or (kong sar)) ;*.